Valve insides



En u en @ZZ/U.

April V19, 1932. J. c. CROWLEY VALVE INSIDES Filed July s, 195o Patented Apr. 19, 17932" UNITED STATES gPATENT OFFICE JOHN C. CROWLEY, 0F CLEVELAND HEIGHTS, OHIO VALVE INSIDES Application led July 3,

This invention relates to a valve insides and particularly to a valve insides adapted to be arranged in the valve stem of a pneumatic tire.

An object of the invention is to provide a valve insides which is so constructed that a maximum passage through the insides will be provided whereby a tire equipped with the insides may be inated or deflated in a minimum amount of time.

Another object is to provide a valve insides of this character which is simple in construction and which may be economically and eX- peditiously manufactured.

Additional objects and advantages will appear hereinafter, during the detailed description of an embodiment of the invention that follows:

An embodiment of t-he invention is illusated in the accompanying drawings where` 1n,

Figure 1 is a longitudinal sectional view through the valve insides taken substantially on line A-A of Figure 3;

Figure 2 is a fragmentary side elevational view showing the upper portion of the valve insides; and,

Figure 3 is a top plan view of the valve insides.

As is well understood in t-he art, a valve insides is adapted to be secured within the bore of a valve stem. The conventional valve stem in general use on pneumatic tires is provided with a longitudinal bore the upper portion of which is internally threaded and is larger than the lower portion, such upper portion usually being connected to the lower portion by a tapered or conical shoulder.

The usual or conventional valve insides comprises a barrel part having a threaded plug swivelly connected to its upper end, the barrel and plug being provided with aligned longitudinal bores through which the valve pin extends. The valve insides is positioned in the valve stem with the threaded plug oo operating with the threaded portion of the bore of the stem and with a packing member usually arranged on the barrel cooperatin With the tapered or conical shoulder in thi-e 1930.` Serial No. 465,573.

bore of the stem to form a seal between the constructed as to present a minimum restriction to the passage of air therethrough7 whereby a tire-equipped with the insides may be inflated or deflated quickly.

In the embodiment of the invention disclosed herein, the valve insides comprises the barrel part 10 and thethreaded plug part 11 kwhich is swivelly connected to the upper end of the barrel 10.

The swivel connection between the barrel and plug is effected by providing the upper end of the barrel 10 with an outstanding annular flange 12 which is arranged in an annular recess 13 formed in the plug 11 be-v tween a shoulder 14 and the nturned end 15 of the depending skirt portion 16 of the plug.

The barrel 10 is provided with a longitudinal bore 17 extending longitudinally through the barrel and of constant diameter for substantially the entire length of the barrel, with the exception` that the barrel is provided with an internal annular iange 18 projecting into the bore 17 adjacent its inner end and forming a short restricted bore 17a.

Intermediate the ends of the barrel an eX- terior annular groove 19 is provided to receive a packing member 2O adapted to cooperate with the tapered or conical shoulder in the bore of the valve stem as previously set forth. The inner end of the barrel 10 is tapered as indicated at 21 to provide a narrow edge forming a valve seat.

A spring 22 is arranged in the bore 17 of the barrel j1O and abuts at itsV inner end the flange 18 and at its outer end a ring washer 23 having a sliding lit within the bore 17. A valve pin 24 extends through the valve insides and carries at its lower end a valve member 25 provided with packing 26 adapted when the. valve is seated to engage with the edge of the tapered portion V21 of the barrel, as clearly shown in Figure 1 and as is' well understood in the art.

The valve pin 24 is provided with a plurality of outstanding iin portions 27 at that portion of the pin which is normally within the bore of the threaded plug 11, it being noted that the bore 28 of the plug ll is slightdirection, and being interposed between one ly larger than the bore 17 of the barrel 10 end of the valve spring and the fins on the and that the iins 27 do not extend the entire width of the bore 28. However, it should be noted that the fins 27 engage with the outer end oi' the ring washer 23 and it will be appreciated that the spring 22 workingJ against the inner-end et theI Washer 2S5serves to push: the pin 241- outwardly of the insides and to seat the Valve 25 on the edge of the tapered portion 21.

t will also be seen that wihen the valve pin 24 is depressed, the fins 27 will cause the washier 23 to move inwardly of the barrel to compress the spring 22 and that't'lie valve 25 willv be .moved by. the valvepin and. unseated'.a

The outer end of the barrelisprovided with a pair of diametrically opposed outwardly extending. portions 29 so thata suitable tool` may be engaged'v therewith torotate the; plug,

l1V in assembling the valve insidesfwithin the valve stem.

It will be seenyin the construction of the insides just above set-f-orth,that amaximum passage for air therethrough is provided, since the construction eliminates the usual bridge at the upper end of the insides and provides a: bore, through the insides; of sub'- stantially. oonstantdiameter trom end to end thereof. It will further be seen that this constructionv lends itself to economie manu.- facturev and may be readily assembled.V

In the construction of Valve insideshaving thespringencased. in the barrel, it isnecessary tomake the top. coil` ofthe: spring of a smaller diameten'than. that. oi theother coils in order to prevent the wings on the pin from, spreading, the top: coil: and wedging it in the boreA of the barrel when the spring'is. de.- pressed.,L

Thissmall. endv eoil: of the spring restricts.

the air passagezthrough thebarrel. By posi.- tioning a: washer between theY top coil. ofthe spring/ andi wings on; the pim, the necessity2v of a smalltopcoilis eliminated thereby providing a maximum airI passager through the valve insides. f

Although a preferred embodimentv of the invention hasbeen'described herein, it should be understood that' the invention issuseepti-v ble oi various modifications and'adaptions within. the scope of the-appended claim.

Having, thus described my invention, I claim The combination in a valve insides of' the type? having a tubular barrel member, a val-ve,

pin extending through the valve insides and having a valve springthereonl and beingprovided with laterally extending. fins', of a ring` washer' having both ends entirely open and, arranged in said member and s-urroundingx said pin] and-h avingan `external diameter such that the'washer engages thewaill oli the: boreof said member with ay sliding lit, thesaid:

washer having a thin' wallinl a transverse4 valve pin.

signature.

JOHN C. CROWLEY. 

